Home / 20,616.84-28,450.85-11,664.18

Finding the Fourth Proportional to 20,616.84, 28,450.85 and 11,664.18

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Solution

The fourth proportional to 20,616.84, 28,450.85 and 11,664.18 is: 16,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.84 : 28,450.85 = 11,664.18 : x
  2. Step 2: Convert to fraction form
    20,616.84/28,450.85 = 11,664.18/x
  3. Step 3: Cross multiply
    20,616.84x = 28,450.85 × 11,664.18
  4. Step 4: Simplify right side
    20,616.84x = 331,855,777.23
  5. Step 5: Solve for x
    x = 331,855,777.23/20,616.84
  6. Step 6: Final answer
    x = 16,096.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.